100200121012 has 24 divisors (see below), whose sum is σ = 175558763520. Its totient is φ = 50040515040.

The previous prime is 100200121009. The next prime is 100200121019. The reversal of 100200121012 is 210121002001.

It is a self number, because there is not a number n which added to its sum of digits gives 100200121012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200121019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17299837 + ... + 17305627.

It is an arithmetic number, because the mean of its divisors is an integer number (7314948480).

Almost surely, 2^100200121012 is an apocalyptic number.

It is an amenable number.

100200121012 is a deficient number, since it is larger than the sum of its proper divisors (75358642508).

100200121012 is a wasteful number, since it uses less digits than its factorization.

100200121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10191 (or 10189 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100200121012 its reverse (210121002001), we get a palindrome (310321123013).

It can be divided in two parts, 1002001 and 21012, that multiplied together give a palindrome (21054045012).

The spelling of 100200121012 in words is "one hundred billion, two hundred million, one hundred twenty-one thousand, twelve".